M.4

소수의 덧셈과 뺄셈

2분기 (12~2월)

소수점을 맞추어 소수 셋째 자리까지의 소수 더하고 빼기

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문제 수
Daniel Math Academy · Grade 5 Math

Add & Subtract Decimals

Skill M.4 · Adding & subtracting decimals · ★★☆ Medium · Quarter 2

Name
 
Date
 
Score/ 12

Add or subtract.

Example
11
45.6
+7.85
53.45

Think: Line up the decimal points. Think of as , so both numbers have hundredths, then add: .

  1. 1
    31.3
    −24.519
  2. 2
    79.8
    −79.1
  3. 3
    98.251
    +49.03
  4. 4
    74.3
    +5.45
  5. 5
    70.3
    −55.39
  6. 6
    54.55
    +45.063
  7. 7
    69.67
    −34.234
  8. 8
    58.33
    +8.286
  9. 9
    67.69
    −25.41
  10. 10
    89.157
    −12.38
  11. 11
    49.623
    +11.279
  12. 12
    1.7
    +64.548
Daniel Math Academy · danielmath.comWorksheet #wm7kzih · Page 1 / 2
Daniel Math Academy · Grade 5 Math

Answer Key

M.4 Add & Subtract Decimals · ★★☆ Medium

  1. 16.781
  2. 20.7
  3. 3147.281
  4. 479.75
  5. 514.91
  6. 699.613
  7. 735.436
  8. 866.616
  9. 942.28
  10. 1076.777
  11. 1160.902
  12. 1266.248
Daniel Math Academy · danielmath.comWorksheet #wm7kzih · Answer Key · Page 2 / 2